Proposed Asset Tax Calculator NZ
Speculative: this tax does not exist
New Zealand has no tax on net wealth or total assets. Income from assets is taxed; the assets themselves are not. This page models a tax that has not been introduced, legislated or announced as government policy. It exists so you can see what such a tax would cost if it were ever introduced at a rate you choose.
The rate is yours to set on the slider. The starting figure is an illustrative round number, not a proposal, and is not attributed to any political party. No numbers on this page describe current New Zealand law, and none should be quoted as though they do.
This calculator models an annual tax on net assets, sometimes called a wealth tax, if New Zealand introduced one. No such tax exists. New Zealand taxes the income an asset produces, such as rent, dividends or interest, but it does not tax the value of what you own. An asset tax works differently: it applies each year to your net worth, meaning everything you own less everything you owe, usually only above a threshold so that most households pay nothing. You enter your assets and your debts, set the threshold at which the tax would start, and move the slider to the rate you want to test. The calculator returns your net worth, the amount above the threshold, and the annual tax. The design detail that matters most is the threshold, because a tax of even two or three percent produces nothing at all until net worth passes it, and the bill then grows only on the excess. Note that an annual tax on assets is paid out of income unless assets are sold, which is why such proposals are usually argued about in terms of liquidity as much as fairness.
A hypothetical figure for a tax that does not exist. It is arithmetic on the rate you chose, not a forecast, a policy costing or advice.
How it works
Net worth is total assets less total debts. The taxable amount is net worth above the threshold you set, and never less than zero. The annual tax is that amount multiplied by the rate on the slider. The monthly figure is the annual tax divided by twelve, since an asset tax is an ongoing cost rather than a one-off.
Worked example
A household with $2,600,000 of assets and $450,000 of debt has a net worth of $2,150,000. With a threshold of $2,000,000, only $150,000 sits above the starting point. At 1 percent the annual tax would be $1,500, or about $125 a month. Drop the assets to $2,400,000 and net worth falls to $1,950,000, below the threshold, and the tax becomes nothing at all: the threshold matters far more than the rate.
Related calculators
- Net Worth Calculator: work out your net worth first.
- Proposed Land Tax Calculator: a hypothetical tax on land only.
- Proposed Capital Gains Tax Calculator: a hypothetical tax on gains rather than holdings.
- Proposed Inheritance Tax Calculator: a hypothetical tax on estates.
- All Proposed Tax Calculators: the full speculative category, and what New Zealand actually taxes.